/*
 * Copyright (c) 2022, 2023 Oracle and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.helidon.webserver.staticcontent;

import java.io.IOException;

import io.helidon.common.configurable.LruCache;
import io.helidon.common.uri.UriQuery;
import io.helidon.http.HeaderNames;
import io.helidon.http.Method;
import io.helidon.http.Status;
import io.helidon.webserver.http.ServerRequest;
import io.helidon.webserver.http.ServerResponse;

record CachedHandlerRedirect(String location) implements CachedHandler {
    @Override
    public boolean handle(LruCache<String, CachedHandler> cache,
                          Method method,
                          ServerRequest request,
                          ServerResponse response,
                          String requestedResource) throws IOException {

        UriQuery query = request.query();
        String locationWithQuery;
        if (query.isEmpty()) {
            locationWithQuery = location();
        } else {
            locationWithQuery = location() + "?" + query.rawValue();
        }

        response.status(Status.MOVED_PERMANENTLY_301);
        response.headers().set(HeaderNames.LOCATION, locationWithQuery);
        response.send();
        return true;
    }
}
